Literature DB >> 21580715

(6S)-2,4-Di-tert-butyl-6-[(4S,5R)-3-iso-propyl-4-methyl-5-phenyloxazolidin-2-yl]phenol.

Ian Sean Campbell1, Kate L Edler, Raleigh W Parrott, Shawn R Hitchcock, Gregory M Ferrence.   

Abstract

The title oxazolidine compound, C(27)H(39)NO(2), was synthesized from N-isopropyl-norephedrine. The dihedral angle between the aromatic rings is 70.33 (5)°. The N atom of the heterocycle is oriented to allow intra-molecular O-H⋯N hydrogen bonding with the hydr-oxy substituent.

Entities:  

Year:  2010        PMID: 21580715      PMCID: PMC2983885          DOI: 10.1107/S1600536810009074

Source DB:  PubMed          Journal:  Acta Crystallogr Sect E Struct Rep Online        ISSN: 1600-5368


Related literature

For related structures and background to chiral oxazolidines, see: Agami & Couty (2004 ▶); Anderson et al. (2010 ▶); Bourne et al. (1997 ▶); Duffy et al. (2004 ▶); Hitchcock et al. (2004 ▶); Koyanagi et al. (2010 ▶); Parrott & Hitchcock (2007 ▶); Parrott et al. (2008 ▶). The synthesis and absolute configuration assignment of the title compound is described by Parrott et al. (2008 ▶). The absolute configuration assignment is based on both optical activity measurements and on the known stereochemistry of the commercially obtained optically pure norephedrine from which it was prepared (Parrott et al., 2008 ▶). For geometry checks using Mogul, see: Bruno et al. (2004 ▶). For ring puckering analysis, see: Boeyens (1978 ▶); Cremer & Pople (1975 ▶); Spek (2009 ▶). For a description of the Jmol toolkit for the preparation of enhanced figures, see: McMahon & Hanson (2008).

Experimental

Crystal data

C27H39NO2 M = 409.59 Monoclinic, a = 18.9564 (19) Å b = 6.9943 (7) Å c = 18.3388 (19) Å β = 91.833 (2)° V = 2430.2 (4) Å3 Z = 4 Mo Kα radiation μ = 0.07 mm−1 T = 140 K 0.55 × 0.27 × 0.11 mm

Data collection

Bruker SMART APEX CCD diffractometer Absorption correction: multi-scan (SADABS; Bruker, 2008 ▶) T min = 0.809, T max = 0.992 14330 measured reflections 3938 independent reflections 3568 reflections with I > 2σ(I) R int = 0.035

Refinement

R[F 2 > 2σ(F 2)] = 0.038 wR(F 2) = 0.097 S = 1.06 3938 reflections 275 parameters 1 restraint H atoms treated by a mixture of independent and constrained refinement Δρmax = 0.31 e Å−3 Δρmin = −0.21 e Å−3 Data collection: APEX2 (Bruker, 2008 ▶); cell refinement: APEX2 and SAINT (Bruker, 2008 ▶); data reduction: SAINT; program(s) used to solve structure: SIR2004 (Burla et al., 2005 ▶); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008 ▶); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997 ▶) and Mercury (Macrae et al., 2008 ▶); software used to prepare material for publication: WinGX (Farrugia, 1999 ▶) and publCIF (McMahon & Westrip, 2008 ▶). Crystal structure: contains datablocks global, I. DOI: 10.1107/S1600536810009074/sj2720sup1.cif Structure factors: contains datablocks I. DOI: 10.1107/S1600536810009074/sj2720Isup2.hkl Additional supplementary materials: crystallographic information; 3D view; checkCIF report Enhanced figure: interactive version of Fig. 2
C27H39NO2F(000) = 896
Mr = 409.59Dx = 1.119 Mg m3
Monoclinic, C2Mo Kα radiation, λ = 0.71073 Å
Hall symbol: C 2yCell parameters from 4163 reflections
a = 18.9564 (19) Åθ = 2.4–30.0°
b = 6.9943 (7) ŵ = 0.07 mm1
c = 18.3388 (19) ÅT = 140 K
β = 91.833 (2)°Prism, colourless
V = 2430.2 (4) Å30.55 × 0.27 × 0.11 mm
Z = 4
Bruker SMART APEX CCD diffractometer3938 independent reflections
Radiation source: sealed tube3568 reflections with I > 2σ(I)
graphiteRint = 0.035
ω scansθmax = 30.5°, θmin = 2.2°
Absorption correction: multi-scan (SADABS; Bruker, 2008)h = −26→26
Tmin = 0.809, Tmax = 0.992k = −9→9
14330 measured reflectionsl = −25→26
Refinement on F21 restraint
Least-squares matrix: fullH atoms treated by a mixture of independent and constrained refinement
R[F2 > 2σ(F2)] = 0.038w = 1/[σ2(Fo2) + (0.0531P)2 + 0.4486P] where P = (Fo2 + 2Fc2)/3
wR(F2) = 0.097(Δ/σ)max < 0.001
S = 1.06Δρmax = 0.31 e Å3
3938 reflectionsΔρmin = −0.21 e Å3
275 parameters
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes.
xyzUiso*/Ueq
O10.21602 (6)0.71916 (17)0.60579 (5)0.0173 (2)
C20.23499 (7)0.5793 (2)0.66002 (8)0.0151 (3)
H20.27840.51040.64510.018*
N30.17413 (6)0.4434 (2)0.65832 (7)0.0156 (2)
C40.13878 (8)0.4652 (3)0.58521 (8)0.0184 (3)
H40.13780.33960.55910.022*
C50.18794 (8)0.6063 (2)0.54634 (8)0.0168 (3)
H50.22720.53310.52420.02*
C60.15197 (8)0.7273 (3)0.48843 (8)0.0190 (3)
C70.13772 (9)0.6460 (3)0.41968 (9)0.0247 (4)
H70.15510.52220.40870.03*
C80.09812 (10)0.7473 (3)0.36750 (9)0.0310 (4)
H80.08790.69130.32110.037*
C90.07341 (9)0.9289 (3)0.38248 (10)0.0309 (4)
H90.04570.99620.34690.037*
C100.08921 (9)1.0122 (3)0.44958 (10)0.0296 (4)
H100.07341.13810.45960.036*
C110.12842 (9)0.9110 (3)0.50231 (9)0.0241 (3)
H110.13910.96840.54830.029*
C120.06366 (8)0.5394 (3)0.59313 (10)0.0265 (4)
H12A0.03560.44330.61810.04*
H12B0.04240.56470.54470.04*
H12C0.06480.65790.62170.04*
C130.19230 (8)0.2421 (2)0.67659 (9)0.0184 (3)
H130.21830.18520.63530.022*
C140.23865 (9)0.2287 (3)0.74597 (9)0.0239 (3)
H14A0.28230.30080.73950.036*
H14B0.25010.09440.7560.036*
H14C0.21330.28230.7870.036*
C150.12439 (8)0.1293 (2)0.68651 (9)0.0215 (3)
H15A0.09460.13820.6420.032*
H15B0.0990.18220.72760.032*
H15C0.136−0.00510.69630.032*
C160.24901 (8)0.6727 (2)0.73341 (8)0.0146 (3)
C170.19570 (8)0.6985 (2)0.78395 (8)0.0153 (3)
C180.21200 (7)0.7788 (2)0.85336 (8)0.0157 (3)
C190.28182 (8)0.8304 (2)0.86816 (8)0.0164 (3)
H190.29330.88530.91440.02*
C200.33651 (7)0.8063 (2)0.81889 (8)0.0152 (3)
C210.31826 (7)0.7257 (2)0.75174 (8)0.0154 (3)
H210.35390.7060.71730.018*
O220.12784 (5)0.64508 (18)0.76713 (6)0.0186 (2)
C230.15478 (8)0.8022 (2)0.91039 (8)0.0177 (3)
C240.09529 (8)0.9342 (3)0.88101 (9)0.0240 (3)
H24A0.07510.88130.83550.036*
H24B0.11451.06160.87170.036*
H24C0.05850.94370.91710.036*
C250.12440 (9)0.6043 (3)0.92950 (9)0.0220 (3)
H25A0.10510.54330.88510.033*
H25B0.08680.61980.96450.033*
H25C0.1620.52410.95110.033*
C260.18409 (9)0.8921 (3)0.98124 (9)0.0224 (3)
H26A0.14610.90421.0160.034*
H26B0.20331.0190.97080.034*
H26C0.22160.81071.00220.034*
C270.41164 (8)0.8692 (2)0.84125 (8)0.0175 (3)
C280.41262 (9)1.0865 (3)0.85531 (9)0.0217 (3)
H28A0.37891.11780.89290.033*
H28B0.39951.15420.81010.033*
H28C0.46011.12570.87190.033*
C290.46469 (8)0.8238 (3)0.78232 (9)0.0241 (3)
H29A0.51180.86630.79870.036*
H29B0.45080.89050.73710.036*
H29C0.46540.68570.77350.036*
C300.43590 (8)0.7636 (3)0.91139 (9)0.0225 (3)
H30A0.40290.79050.95020.034*
H30B0.48320.80740.92660.034*
H30C0.4370.62570.90210.034*
H220.1327 (12)0.561 (4)0.7296 (12)0.034 (6)*
U11U22U33U12U13U23
O10.0198 (5)0.0170 (5)0.0150 (5)−0.0012 (4)−0.0024 (4)0.0005 (4)
C20.0140 (6)0.0142 (7)0.0170 (7)−0.0007 (5)−0.0014 (5)−0.0003 (5)
N30.0157 (5)0.0134 (6)0.0175 (6)−0.0004 (5)−0.0026 (4)0.0003 (5)
C40.0189 (7)0.0196 (7)0.0166 (7)−0.0020 (6)−0.0020 (5)0.0000 (6)
C50.0178 (6)0.0184 (7)0.0143 (6)−0.0009 (6)−0.0006 (5)−0.0022 (6)
C60.0172 (7)0.0242 (8)0.0157 (7)−0.0047 (6)0.0015 (5)0.0016 (6)
C70.0264 (8)0.0308 (9)0.0172 (7)−0.0099 (7)0.0023 (6)−0.0016 (7)
C80.0317 (9)0.0466 (12)0.0146 (7)−0.0189 (9)−0.0030 (6)0.0049 (8)
C90.0228 (8)0.0445 (12)0.0249 (8)−0.0102 (8)−0.0044 (6)0.0169 (8)
C100.0266 (8)0.0332 (10)0.0292 (9)0.0026 (7)0.0007 (7)0.0102 (8)
C110.0258 (8)0.0278 (9)0.0185 (7)0.0030 (7)−0.0011 (6)0.0021 (7)
C120.0162 (7)0.0381 (10)0.0249 (8)−0.0015 (7)−0.0024 (6)0.0101 (8)
C130.0178 (7)0.0148 (7)0.0229 (7)0.0015 (6)0.0016 (5)−0.0002 (6)
C140.0238 (8)0.0186 (8)0.0290 (8)0.0014 (6)−0.0048 (6)0.0047 (7)
C150.0231 (7)0.0167 (8)0.0247 (8)−0.0019 (6)0.0026 (6)0.0002 (6)
C160.0165 (7)0.0122 (7)0.0150 (6)0.0010 (5)−0.0006 (5)0.0000 (5)
C170.0136 (6)0.0138 (7)0.0184 (7)0.0010 (5)−0.0006 (5)0.0007 (5)
C180.0161 (6)0.0138 (7)0.0171 (7)0.0018 (5)0.0012 (5)0.0012 (5)
C190.0171 (7)0.0176 (7)0.0145 (6)0.0004 (5)−0.0007 (5)−0.0010 (6)
C200.0134 (6)0.0149 (7)0.0172 (7)0.0003 (5)−0.0005 (5)0.0010 (6)
C210.0143 (6)0.0153 (7)0.0167 (6)0.0014 (5)0.0020 (5)−0.0001 (6)
O220.0135 (5)0.0222 (6)0.0201 (5)−0.0010 (4)0.0000 (4)−0.0036 (5)
C230.0146 (6)0.0202 (8)0.0183 (7)0.0013 (6)0.0023 (5)−0.0004 (6)
C240.0206 (7)0.0260 (9)0.0256 (8)0.0067 (7)0.0036 (6)0.0019 (7)
C250.0213 (7)0.0246 (9)0.0204 (7)−0.0038 (6)0.0029 (6)0.0021 (6)
C260.0219 (7)0.0259 (9)0.0197 (7)−0.0018 (7)0.0041 (6)−0.0045 (6)
C270.0135 (6)0.0207 (8)0.0181 (7)−0.0012 (6)−0.0004 (5)−0.0014 (6)
C280.0200 (7)0.0207 (8)0.0243 (8)−0.0034 (6)−0.0002 (6)−0.0030 (6)
C290.0141 (7)0.0334 (9)0.0248 (8)−0.0021 (6)0.0025 (6)−0.0082 (7)
C300.0170 (7)0.0271 (9)0.0230 (7)0.0024 (6)−0.0030 (6)0.0009 (7)
O1—C21.4324 (18)C16—C171.405 (2)
O1—C51.4345 (18)C17—O221.3652 (17)
C2—N31.4947 (19)C17—C181.416 (2)
C2—C161.512 (2)C18—C191.390 (2)
C2—H21C18—C231.539 (2)
N3—C131.485 (2)C19—C201.407 (2)
N3—C41.4875 (19)C19—H190.95
C4—C121.527 (2)C20—C211.388 (2)
C4—C51.547 (2)C20—C271.534 (2)
C4—H41C21—H210.95
C5—C61.504 (2)O22—H220.91 (3)
C5—H51C23—C261.532 (2)
C6—C111.386 (3)C23—C241.541 (2)
C6—C71.401 (2)C23—C251.544 (2)
C7—C81.391 (3)C24—H24A0.98
C7—H70.95C24—H24B0.98
C8—C91.384 (3)C24—H24C0.98
C8—H80.95C25—H25A0.98
C9—C101.386 (3)C25—H25B0.98
C9—H90.95C25—H25C0.98
C10—C111.394 (2)C26—H26A0.98
C10—H100.95C26—H26B0.98
C11—H110.95C26—H26C0.98
C12—H12A0.98C27—C291.533 (2)
C12—H12B0.98C27—C301.541 (2)
C12—H12C0.98C27—C281.541 (2)
C13—C141.526 (2)C28—H28A0.98
C13—C151.526 (2)C28—H28B0.98
C13—H131C28—H28C0.98
C14—H14A0.98C29—H29A0.98
C14—H14B0.98C29—H29B0.98
C14—H14C0.98C29—H29C0.98
C15—H15A0.98C30—H30A0.98
C15—H15B0.98C30—H30B0.98
C15—H15C0.98C30—H30C0.98
C16—C211.395 (2)
C2—O1—C5103.35 (11)C17—C16—C2122.22 (13)
O1—C2—N3104.08 (11)O22—C17—C16120.56 (13)
O1—C2—C16110.87 (12)O22—C17—C18119.24 (13)
N3—C2—C16114.02 (12)C16—C17—C18120.20 (13)
O1—C2—H2109.2C19—C18—C17117.22 (13)
N3—C2—H2109.2C19—C18—C23121.78 (13)
C16—C2—H2109.2C17—C18—C23120.97 (13)
C13—N3—C4113.28 (13)C18—C19—C20124.06 (14)
C13—N3—C2115.16 (12)C18—C19—H19118
C4—N3—C2106.19 (11)C20—C19—H19118
N3—C4—C12110.11 (12)C21—C20—C19116.77 (13)
N3—C4—C5102.71 (11)C21—C20—C27123.82 (13)
C12—C4—C5113.85 (14)C19—C20—C27119.41 (13)
N3—C4—H4110C20—C21—C16121.85 (13)
C12—C4—H4110C20—C21—H21119.1
C5—C4—H4110C16—C21—H21119.1
O1—C5—C6112.09 (13)C17—O22—H22103.2 (14)
O1—C5—C4102.43 (11)C26—C23—C18112.07 (12)
C6—C5—C4114.71 (12)C26—C23—C24106.97 (14)
O1—C5—H5109.1C18—C23—C24110.48 (12)
C6—C5—H5109.1C26—C23—C25107.66 (13)
C4—C5—H5109.1C18—C23—C25109.56 (13)
C11—C6—C7119.14 (16)C24—C23—C25110.02 (13)
C11—C6—C5122.20 (14)C23—C24—H24A109.5
C7—C6—C5118.51 (16)C23—C24—H24B109.5
C8—C7—C6119.79 (18)H24A—C24—H24B109.5
C8—C7—H7120.1C23—C24—H24C109.5
C6—C7—H7120.1H24A—C24—H24C109.5
C9—C8—C7120.60 (17)H24B—C24—H24C109.5
C9—C8—H8119.7C23—C25—H25A109.5
C7—C8—H8119.7C23—C25—H25B109.5
C8—C9—C10119.83 (17)H25A—C25—H25B109.5
C8—C9—H9120.1C23—C25—H25C109.5
C10—C9—H9120.1H25A—C25—H25C109.5
C9—C10—C11119.83 (19)H25B—C25—H25C109.5
C9—C10—H10120.1C23—C26—H26A109.5
C11—C10—H10120.1C23—C26—H26B109.5
C6—C11—C10120.75 (17)H26A—C26—H26B109.5
C6—C11—H11119.6C23—C26—H26C109.5
C10—C11—H11119.6H26A—C26—H26C109.5
C4—C12—H12A109.5H26B—C26—H26C109.5
C4—C12—H12B109.5C29—C27—C20112.13 (13)
H12A—C12—H12B109.5C29—C27—C30107.72 (13)
C4—C12—H12C109.5C20—C27—C30109.61 (13)
H12A—C12—H12C109.5C29—C27—C28108.51 (14)
H12B—C12—H12C109.5C20—C27—C28109.48 (13)
N3—C13—C14111.70 (13)C30—C27—C28109.35 (14)
N3—C13—C15109.08 (13)C27—C28—H28A109.5
C14—C13—C15109.52 (13)C27—C28—H28B109.5
N3—C13—H13108.8H28A—C28—H28B109.5
C14—C13—H13108.8C27—C28—H28C109.5
C15—C13—H13108.8H28A—C28—H28C109.5
C13—C14—H14A109.5H28B—C28—H28C109.5
C13—C14—H14B109.5C27—C29—H29A109.5
H14A—C14—H14B109.5C27—C29—H29B109.5
C13—C14—H14C109.5H29A—C29—H29B109.5
H14A—C14—H14C109.5C27—C29—H29C109.5
H14B—C14—H14C109.5H29A—C29—H29C109.5
C13—C15—H15A109.5H29B—C29—H29C109.5
C13—C15—H15B109.5C27—C30—H30A109.5
H15A—C15—H15B109.5C27—C30—H30B109.5
C13—C15—H15C109.5H30A—C30—H30B109.5
H15A—C15—H15C109.5C27—C30—H30C109.5
H15B—C15—H15C109.5H30A—C30—H30C109.5
C21—C16—C17119.90 (13)H30B—C30—H30C109.5
C21—C16—C2117.82 (13)
C5—O1—C2—N3−43.06 (13)O1—C2—C16—C21−92.31 (16)
C5—O1—C2—C16−166.07 (12)N3—C2—C16—C21150.63 (13)
O1—C2—N3—C13148.89 (12)O1—C2—C16—C1790.78 (16)
C16—C2—N3—C13−90.19 (16)N3—C2—C16—C17−26.3 (2)
O1—C2—N3—C422.67 (15)C21—C16—C17—O22−179.16 (14)
C16—C2—N3—C4143.59 (13)C2—C16—C17—O22−2.3 (2)
C13—N3—C4—C12115.78 (16)C21—C16—C17—C180.2 (2)
C2—N3—C4—C12−116.86 (14)C2—C16—C17—C18177.09 (14)
C13—N3—C4—C5−122.62 (14)O22—C17—C18—C19179.78 (14)
C2—N3—C4—C54.73 (15)C16—C17—C18—C190.4 (2)
C2—O1—C5—C6169.17 (12)O22—C17—C18—C231.4 (2)
C2—O1—C5—C445.70 (14)C16—C17—C18—C23−178.02 (14)
N3—C4—C5—O1−30.41 (15)C17—C18—C19—C20−0.5 (2)
C12—C4—C5—O188.60 (15)C23—C18—C19—C20177.89 (15)
N3—C4—C5—C6−152.11 (13)C18—C19—C20—C210.0 (2)
C12—C4—C5—C6−33.09 (19)C18—C19—C20—C27179.87 (15)
O1—C5—C6—C11−20.2 (2)C19—C20—C21—C160.7 (2)
C4—C5—C6—C1196.10 (18)C27—C20—C21—C16−179.21 (15)
O1—C5—C6—C7164.23 (13)C17—C16—C21—C20−0.8 (2)
C4—C5—C6—C7−79.51 (18)C2—C16—C21—C20−177.78 (14)
C11—C6—C7—C8−2.4 (2)C19—C18—C23—C261.8 (2)
C5—C6—C7—C8173.36 (14)C17—C18—C23—C26−179.90 (15)
C6—C7—C8—C90.9 (2)C19—C18—C23—C24120.96 (16)
C7—C8—C9—C101.1 (3)C17—C18—C23—C24−60.72 (19)
C8—C9—C10—C11−1.6 (3)C19—C18—C23—C25−117.67 (16)
C7—C6—C11—C101.9 (2)C17—C18—C23—C2560.66 (18)
C5—C6—C11—C10−173.66 (16)C21—C20—C27—C29−2.7 (2)
C9—C10—C11—C60.1 (3)C19—C20—C27—C29177.39 (15)
C4—N3—C13—C14170.85 (12)C21—C20—C27—C30−122.31 (16)
C2—N3—C13—C1448.35 (18)C19—C20—C27—C3057.81 (19)
C4—N3—C13—C15−67.93 (16)C21—C20—C27—C28117.75 (17)
C2—N3—C13—C15169.56 (12)C19—C20—C27—C28−62.13 (19)
D—H···AD—HH···AD···AD—H···A
O22—H22···N30.91 (3)1.75 (2)2.6180 (17)158 (2)
Table 1

Hydrogen-bond geometry (Å, °)

D—H⋯AD—HH⋯ADAD—H⋯A
O22—H22⋯N30.91 (3)1.75 (2)2.6180 (17)158 (2)
  7 in total

1.  Retrieval of crystallographically-derived molecular geometry information.

Authors:  Ian J Bruno; Jason C Cole; Magnus Kessler; Jie Luo; W D Sam Motherwell; Lucy H Purkis; Barry R Smith; Robin Taylor; Richard I Cooper; Stephanie E Harris; A Guy Orpen
Journal:  J Chem Inf Comput Sci       Date:  2004 Nov-Dec

2.  A short history of SHELX.

Authors:  George M Sheldrick
Journal:  Acta Crystallogr A       Date:  2007-12-21       Impact factor: 2.290

3.  (6R)-2-tert-Butyl-6-[(4R,5S)-3-isopropyl-4-methyl-5-phenyl-oxazolidin-2-yl]phenol.

Authors:  Takaoki Koyanagi; Kate L Edler; Raleigh W Parrott; Shawn R Hitchcock; Gregory M Ferrence
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2010-03-24

4.  (6S)-2-tert-Butyl-6-[(4S,5R)-3,4-dimethyl-5-phenyloxazolidin-2-yl]phenol.

Authors:  Alexander E Anderson; Kate L Edler; Raleigh W Parrott; Shawn R Hitchcock; Gregory M Ferrence
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2010-03-24

5.  Intramolecular chiral relay at stereogenic nitrogen. Synthesis and application of a new chiral auxiliary derived from (1R,2S)-norephedrine and acetone.

Authors:  Shawn R Hitchcock; David M Casper; Jeremy F Vaughn; Jennifer M Finefield; Gregory M Ferrence; Joel M Esken
Journal:  J Org Chem       Date:  2004-02-06       Impact factor: 4.354

6.  A toolkit for publishing enhanced figures.

Authors:  Brian McMahon; Robert M Hanson
Journal:  J Appl Crystallogr       Date:  2008-07-01       Impact factor: 3.304

7.  Structure validation in chemical crystallography.

Authors:  Anthony L Spek
Journal:  Acta Crystallogr D Biol Crystallogr       Date:  2009-01-20
  7 in total
  3 in total

1.  (6R)-2-tert-Butyl-6-[(4R,5S)-3-isopropyl-4-methyl-5-phenyl-oxazolidin-2-yl]phenol.

Authors:  Takaoki Koyanagi; Kate L Edler; Raleigh W Parrott; Shawn R Hitchcock; Gregory M Ferrence
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2010-03-24

2.  (6S)-2-tert-Butyl-6-[(4S,5R)-3,4-dimethyl-5-phenyloxazolidin-2-yl]phenol.

Authors:  Alexander E Anderson; Kate L Edler; Raleigh W Parrott; Shawn R Hitchcock; Gregory M Ferrence
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2010-03-24

3.  Crystal structure of 2,4-di-tert-butyl-6-(hy-droxy-methyl)-phenol.

Authors:  Ane I Aranburu Leiva; Sophie L Benjamin; Stuart K Langley; Ryan E Mewis
Journal:  Acta Crystallogr E Crystallogr Commun       Date:  2016-10-25
  3 in total

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